Semiconductor nonvolatile read only memory device

Details Semiconductor nonvolatile read only memory device Semiconductor nonvolatile read only memory device

1982-01-29

1985-07-23

Fears, Terrell W.

Static information storage and retrieval

Read only systems

Semiconductive

365226, G11C 1140

Patent

active

045312028

ABSTRACT:
A semiconductor nonvolatile read only memory device has a voltage applying circuit which sets all word lines at ground potential in a stand-by mode and sets only a selected word line at a high level in an active mode. The word lines are connected to the gates of semiconductor nonvolatile memory transistors. Each of the memory transistors has the source (or drain) grounded and the drain (or source) connected to output lines. In a stand-by mode, the voltage applying circuit keeps all the word lines at ground potential. In an active mode, the voltage applying circuit applies a high level voltage only to the selected word line. The memory transistor connected to the selected word line produces data of "0" or "1" to the output line.

REFERENCES:
patent: 4400801 (1983-08-01), Kible

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